Air-compressor for deep-well pumps



(No Mdel.)

J. R. ADAMS 8v J. J. RYAN.

AIR` COMPRESSOR EUR DEEP WELL PUMPS. No. 367,575. Patented Aug. 2, 1887.

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UNITED STATES PATENT OEEIcE.

JOHN It. ADAMS, OF-HOUSTON, AND JOHN J. RYAN, OF SAN ANTONIO,

. TEXAS.

AIR-COMPRESSOR FOR DEEP-WELL PUMPS.

SPECIFICATION forming part of Letters Patent N0. 367,575,612111661 August 2, 1887.

Application filed April27,1887. Serial No. 236,326.

To all whom, it may concern/.-

Be it known that we, JOHN It. ADAMs, of

Houston, inthe county of Harris, and JOHN J. RYAN, residing at San Antonio, in the county of Bexar and State of Texas, both citizens of the United States,have invented certain new and useful Improvements in Compressors for Pumping or Forcing from Deep Vells; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification. AFigure l of the drawings is a representation ofaplan view. Fig. 2 is a side elevation. Fig. Sis an enlarged sectional View of the aircompressor, and Fig. i is a detail view of the same. L

The invention relates to improvements in air compressing mechanism for the purpose of pumping or forcing from deep wells and performing similar work, and it consists in the construction. and arrangement of a larger and smaller air cylinder, and the combination therewith of mechanism to force the air from the larger into the smaller cylinder to increase the ai r-pressure in the latter, as hereinafter described, illustrated in the drawings, and pointed out in the appended claims. 4

Referring to the drawings by letter, A represents the larger and B the smaller air-cylinder, having preferably one-fourth the diameter of the larger one, but an equal length of stroke.v

e is the piston of the former, provided with the inwardly-openingair-valves a', and b is the solid piston of the smaller cylinder, B.

The respective piston-rods C and c of the larger and smaller cylinders are secured to the centers of the cross-heads c c2, the corresponding ends of which are connected by the parallel rods e c3. The cross -head c' moves in guideways formed on the bed-frame of the actuating-engine, and the cross-head cl moves between the arms l of a guide-frame, D, the enlargedinnerend of which surrounds the outer (No model.)

rods `are thus made to move true and together with each other, and the difficulty of keeping packing tight around the pistons under the `heavy air-pressure they are subjected to is .the head E equally distant on each side of its j' is an opening from thelarger cylinder into the lower part of the chambers e. f is an opening from the upper part of said chamber into the smaller cylinder, and F is an upwardly-opening valve having a suitable seat between said openings, so that it is evident that when the -piston of the larger cylinder moves inward it drives the air within the said cylinder through the said openings and valve into`the smaller cylinder, where, as both pistons must move at an equal rate of speed, it is com pressed to one-fourth of its bulk and must exercise four times as much pressure to the square inch as in the larger cylinder.

g is'an opening from the smaller cylinder into the lower part` of the chamber c', and g a pipe extending from the upper part of said chamber down into a well, or to some other point where compressed air is needed.

G is an upwardly-opening valve having a suitable seat between said opening and pipe, so that when the piston of the smaller cylinder moves inward the compressed air in said cylinder will be driven through the pipe g to the desired point, and at the same time, the piston of the larger cylinder moving outward, the latter receives afresh supply of air through its valves a. The smaller cylinder is surrounded by a chamber, X, filled with water., to cool it when heated by the air being compressed within.

The engine and mechanism to operate the pistonv and air-compressing apparatus is as follows:

1I is the bed-frame of said cylinder, and It the steam-cylinder thereof, having the steamchest 7L', provided with the steam and exhaust pipes h2 h, respectively. The piston-rod I of said cylinder rotates, by means of its connecting-rod i and a proper crank or wrist pin se- IOO cured to the disk i', the shaft J. The shaft J, by means of the eccentric j, rockerboxj, connecting-rod ji, and steam valve-rod j, regulates the flow of steam to the cylinder 71., while the pump K, that supplies the boiler and the Water-chamber X around the smaller air-cylinder, B, has its rod k moved by the cross-head 7c', to which the steam pistonrod is actuated and which moves on the guides k2.

L is a ily-wheel on the opposite end of the shaft from the disk, which wheel has secured to it a wristpin, Z, having the outer end of the connecting rod Z pivoted upon it, the inner end of the said rod being pivoted upon a guideblock, M, moving on the ways m and attached to the cross-head c', which is also directed by the ways m.

The above is the preferred construction of engine to actuate the air-compressing mechanism; but We do not wish to limit ourselves to this construction, as any other would be effective.

From the above description it is evident that when the engine is inV operation the pistons ofthelarger and smaller aircylinders will be reciprocated as described, thelarger cylinder will at each outward movement of its piston draw in a fresh supply from the openv bination of the two air cylinders of equal length of stroke, but of unequal diameters, and having their inner ends rmly secured to opposite sides of the same cylinder -head, the inwardly-opening Valves of the piston of the larger cylinder, and the valves, openings, and chambers in the central common cylinder-head,

vsubstantially as described, whereby the larger cylinder is caused to discharge air into the smaller cylinder and the smaller cylinder to discharge compressed air into its dischargepipe, with the cross-heads on the outer ends of the piston-rods, the parallel rods connecting the corresponding ends of said cross-heads, and the guides to direct the movement ofthe crossheads, substantially as specied.

2. In an air-compressing machine, the combination of the actuating-engine constructed substantially as described and provided with the guideways m, of the cylinder A, provided with the piston-rods C and piston a, having the valves a', the cylinder B, having the solid piston Z1 and the piston-rod c, the common cylinder-head, E, having the chambers e c', the Valves F and G, and the openingsf, f', and g, the discharge-pipe g', the eross-heads c c2, the rods c3 c3, and the guide-frame D, provided with the guide-bars d d, all constructed and arranged substantially as and for the purpose specified. y

In testimony whereof we ailix our signatures in presence of two witnesses.

JOHN R. ADAMS. JOHN J. RYAN. Vitnesses:

WM. T. CUMMING, J AMES H. BERRY. 

